Videoconferencing with Advanced Services for High-Quality Teleteaching

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Videoconferencing with Advanced Services for High-Quality Teleteaching"

Transcription

1 Videoconferencing with Advanced Services for High-Quality Teleteaching Mustafa Soy University of Erlangen-Nuremberg - Department of Information Systems Lange Gasse 20, D Nuremberg Distance education can be divided into synchronous and asynchronous teleteaching according to the event timeline. The quality and diversity of teleteaching approaches depends strongly on the available bandwidth (e. g. teleteaching over ISDN vs. technologies with high bandwidth consumption, like MBONE or real-time transmissions). With the increase of available network capacity teleteaching applications improve enormously in quality and quantity. Synchronous teleteaching which was initially just a video-stream based transmission is meanwhile enriched with multimedia applications and changed over to multimedia-videoconferencing sessions. This paper introduces teleteaching scenarios which are based on high-quality approaches using standard MBONE audio/video tools on the one hand and transmission of media streams with high transfer rates over codecs on the other. These different strategies for synchronous distance education are combined in a flexible technical teleteaching environment, in support of the lecturer by integrating multimedia resources into the lecture and access to remotely connected students. These advanced services led to the development of an integrated teleteaching terminal that is currently installed in one lecture theatre and two conference rooms and is used for the transmission of lectures and practising courses within the University of Erlangen-Nuremberg. The main target of the technical development is the enhancement of the working environment for teleteaching scenarios. The research work described in this paper is conducted within the scope of a research project at the University of Erlangen-Nuremberg. The project started in February 1999 and is sponsored by the German Ministry of Education and Research. Keywords: videoconferencing, high-quality teleteaching, distance education, teleteaching infrastructure, -based teleteaching 1 Teleteaching at the University of Erlangen-Nuremberg In the scope of the research project Teleteaching/Telelearning Reference Systems and Service Center within the German Research Broadband Network (TTRef) and the former project MMTT [4], teleteaching has become an important component of the curriculum at the University of Erlangen- Nuremberg. The TTRef research project has been focusing on the following aspects: Development of Reference Systems Based on the experiences of former projects sample solutions have been developed for a specific teleteaching-application-scenario. In this context technical solutions are developed, which provide a working environment for the lecturer and students, equipped with information and communication technology. The development in this area is concentrated on the integration of technical components in a control-platform and the realization of a media-control-tool which enables the lecturer to

2 coordinate presentation material and available devices during the teleteaching lecture, virtually "on the fly". Establishing and Operating a Service Center The teleteaching service center offers consulting and support services for teleteaching reference-systems within the German Research Broadband Network (B-WiN) and the Gigabit High-Speed Research Network (G-WiN). In recent years different technologies for synchronous teleteaching were developed which are currently in use. In respect to the transmission most of the available technical solutions in this field work quite well taking in consideration the respective transfer rates they provide. The main problem with video-conference systems is that they are not very user-friendly, particularly the coordination and control of different devices for the use of distinguish multimedia presentation materials. 2 Videoconferencing with Advanced Services In this section different synchronous teleteaching approaches will be introduced, which are currently used at the University of Erlangen-Nuremberg. The different video-conference approaches (ISDN, MBONE, ) are listed in ascending order according to the transfer rate respectively quality. The transmission of audio/video streams of the lecturer and the far-end participants into the opposite side, is the conventional method of synchronous teleteaching scenarios. Therefore a first approach to synchronous teleteaching is to establish a point-to-point video-conference between two remote access points (e.g. Broadband-ISDN with 128KBit/s). This permits the exchange of audio-visual signals with low-quality. The multicast network MBONE (Multicast Backbone) allows videoconferencing with approximately 500KBit/s. MBONE tools ( vic/vat for video/audio, 'wb' for shared whiteboard applications and sdr for session creation and announcement) are freely available and used for transmission of medium-quality audio/video streams (e.g. CIF resolution with fps). Advantages of using this software package include the possibility to transmit several video streams, to conduct point-to-multipoint conferences and the availability for different computer platforms. The quality and the number of transmitted audio/video streams are closely related to available network capacity. For high-quality videoconferencing has been proved as an efficient transmission mechanism. enables high transfer rates which are required for video-conference applications. In this context high-speed networks can meet these requirements without any problems [1]. Advantages of networks compared to the specified transmission approaches above include the definition of a quality-of-service parameter, thus reserving bandwidth for real-time applications. transfer mode, with its ability to transmit point-to-multipoint and a principally smooth scalability, covers all the necessary requirements for synchronous teleteaching [5]. codecs for transmission and reception of high-quality audio/video streams at the teleteaching access points, are able to code analogous signals directly into native cells. The receiver decodes the cells back to audio/video signals. The advantage of this method is that the transmission procedure is completely transparent and analogous audio-visual signals are available at all access points. Another possibility for receiving such -coded streams are workstations with interfaces. In this approach the cells are received, decoded and presented by the workstation without the need for an additional receiver codec. Unlike other forms of high-quality teleteaching (e. g. special videograbber cards for the SUN workstations), no software is required for transmitting, thus make it less susceptible to crashes. The following paragraphs will give an overview of -based teleteaching. In this context the additional multimedia presentation material and especially the usage in synchronous teleteaching will be introduced. In the scope of -based teleteaching the additionally shown instructional materials as well as the blackboard inscriptions, are forwarded via codecs besides the audio-visual signals

3 of the lecturer. Bandwidth requirements are approximately 15 MBit/s for the video channel and 1 MBit/s for audio. Figure 1 gives an example of an -based teleteaching scenario. Figure 1: -based teleteaching scenario For high-quality transmission of selected media streams (PAL resolution with 25 fps) codecs or special videograbber cards are used. As it cannot be assumed for every remote access point that these devices are available, an additional video stream of medium-quality via MBONE is transmitted. The audio/video back channels from the remote access points are always forwarded via MBONE tools. Computer based presentations and simulations or animations are also transmitted with an additional video stream. Another common type of electronic media propagation for lectures are computer based distributed presentations. Because of its great distribution in the PC world, the PowerPoint presentation software has become a de-facto standard and is used for realizing distributed computer based presentations. The scenario consists of one controlling PC located in the lecture theatre in Nuremberg running a PowerPoint presentation and several controlled PCs in each remote access point, connected to the controlling computer via Internet. Whiteboard systems are used for instructional material, too. For the support of conventional instructional material (e. g. slides, articles, demonstration objects) a video presenter is installed in the lecture theatre. This device is used like a normal overhead projector and supplies a high resolution video signal of the presented material that can be projected locally and forwarded in a high-quality state to the remote access points. The high transfer rate of enables advanced services for high-quality videoconferencing and is therefore very important. The advanced services of video-conference sessions are in the additional transmission of multimedia presentation material and in the coordination and control of these materials with available devices during the video-conference. The added value to high-quality videoconferencing with the media-control-tool for coordination and control of presented material and devices will be introduced in the next section.

4 3 Teleteaching Infrastructure The University of Erlangen-Nuremberg owns a network connection to the Gigabit High-Speed Research Network (G-WiN) of 622MBit/s. The G-WiN has a network capacity of 1.2GBit/s which will be enhanced to 2.4GBit/s in The connection between the neighbour cities Erlangen and Nuremberg has a transfer rate of 155MBit/s. Figure 2 shows the network connections in the area between Erlangen and Nuremberg. Erlangen RRZE-LAN (1.2 GBit/s) Router Erlangen (622 MBit/s) (155 MBit/s) G-WiN Backbone Ethernet (100 MBit/s) Central Router Nuremberg Router Nuremberg WiSo-LAN (1.2 GBit/s) Figure 2: Network infrastructure Nuremberg At the University of Erlangen-Nuremberg one lecture theatre and two multimedia conference rooms are equipped. These access points constitute the basic infrastructure for all teleteaching applications discussed in this paper. The equipment used in the lecture theatre and conference room in Nuremberg is described in detail in [2]. The teleteaching terminal is designed to support the lecturer during teleteaching events as well as to enrich conventional lectures with multimedia material. The goal of the development of the terminal was to integrate most devices needed for teleteaching into a single intuitive and efficient controllable entity. Figure 3 shows the teleteaching terminal. auto-tracking camera for lecturer control monitors for remote participants video presenter touchscreens for pc video switch video recorder presentation and control pc Figure 3: Teleteaching terminal

5 The improved prototype of the terminal includes one PC for computer based presentations and for serial control of certain teleteaching devices, two touchscreen monitors (presentation and media-control), one camera for the lecturer and one camera for instructional material (video presenter), one video cassette recorder and one DVD-Player, four small control monitors for remote participants, switching devices for audio, video and RGB sources and transceivers. The coordination of different presentation material (e.g. slides, video, animations) is not an insignificant effort for the lecturer. In most cases the lecturer has to become acquainted with the technical devices. An integrated and freely configurable media-control-tool for serial control of several devices is developed, to reduce these efforts for the lecturer and to give the possibility for focusing on the presentation. Figure 4 shows the structure of the media-control system. User Interface for Control System JINI Services Serial Hardware Figure 4: System structure of the media-control The underlying hardware in the system structure can be controlled in different ways. One possibility is to use codecs, the other to use serial interfaces. In this context it is also possible to use infrared remote controls for the hardware link. The direct integration of JINI-devices is also one possibility. The service layer between JINI and the hardware enables to embed device interfaces in JINI-services. The service layer creates additional service-objects which read the device parameters for the JINI-service. The interface of the media-control with the underlying system occurs with the JINI-technology. The graphical user interface of the media-control-tool will be programmed in JAVA with well-defined interfaces to JINI. The media-control-tool will provide the lecturer with a summary of all available electronic devices in the media-pool of the video-conference system. Besides the media-pool the media-control-tool will also offer standard configurations which are pre-configured for particular teleteaching scenarios. The lecturer will have the opportunity to configure a media selection for the presentation on the graphical user interface. The connection will be made automatically by the system. Figure 5 shows the planed graphical user interface of the media-control-tool.

6 Standard Configuration New Delete Media-Pool Video Beamer DVD Speaker Camera Television Standard Configuration I DVD Television Screen Beamer Microphon Speaker Standard Configuration I Standard Configuration II Figure 5: Graphical user interface of the media-control-tool The media-control-tool will enable a comfortable usage of available electronic devices without knowledge of location, configuration or even performance of the devices. This is an helpful add-on for the lecturer during the presentation and gives the possibility for a comfortable, effective and highquality service by videoconferencing. 4 Teleteaching Applications Different scenarios of teleteaching applications have already been realized. In particular virtual lectures and virtual practising courses have become an essential part of the curriculum and are conducted routinely. 4.1 Virtual Lecture For several years synchronous teleteaching lectures are regularly practised at the University Erlangen- Nuremberg. Lectures are always held and recorded in the specially equipped lecture theatres in Erlangen and Nuremberg and are viewed in the corresponding conference rooms. Another possibility for attending virtual lectures are computerised multimedia places of work (computers with distinct multimedia equipment and high capacity network connection). 4.2 Virtual Practising Course Corresponding practising courses for the virtual lectures are also offered for transmission. The high degree of interaction between students and lecturer constitutes a particular challenge in this scenario. Furthermore whiteboard systems and/or distributed applications are more often used in virtual practising courses than in virtual lectures. 4.3 Virtual Seminar In this scenario the attending lecturers and audience are spread out over different locations and communication takes place alternately between the respective access points. The audience at the remote access points is able to ask questions to the lecturer or discuss points with other students.

7 4.4 Virtual Excursion Virtual excursions are especially conducted in cooperation with companies. They are designed to save students and company employees time and money. The goal of this teleteaching scenario is the introduction of the company, e. g. by short lectures by employees and/or video material, documenting company strategies and places of work. 4.5 Lecture-on-Demand For evaluation of asynchronous teleteaching applications, certain lectures are digitally recorded and saved on the university s video-on-demand server. Additional high-quality snapshots of blackboard inscriptions or other instructional material (e. g. slides, PowerPoint presentation) are made and synchronously tied to the MPEG video stream. Students can connect to this lecture-on-demand service with conventional web browsers and select the interesting parts of the lecture by themselves. 5 Conclusions High-quality videoconferencing with advanced services will become more widely-spread with the increase of available network capacity. With fewer restrictions in available bandwidth the quality of videoconferencing systems will be measured by user-friendly applications. That means a comfortable use of available electronic devices with different advanced multimedia presentation material. References [1] J. Barnes, D. Ginsburg, D. Newson and D. Pratt, IP multicast of real-time MPEG over, in: Computer Networks and ISDN Systems, Vol. 28 (1996), Amsterdam/Lausanne/New York/Oxford/ Shannon/London, [2] R. Grebner, Use of instructional material in universal teleteaching environments, Computer Networks and ISDN Systems, Vol. 29 (1997), Amsterdam/Lausanne/New York/Oxford/Shannon/London, [3] R. Grebner, A. Klein, Mediensteuerung in heterogenen Mediennetzen - Konzepte und Implementierung von MediaNet, working paper Department of Information Systems II, Nr. 03/1998, Friedrich-Alexander-University of Erlangen-Nuremberg, [4] G. Hoffmann, B-WiN The -based high-speed network for the DFN community, in: Computer Networks and ISDN Systems, Vol. 28 (1996), Amsterdam/Lausanne/New York/Oxford/Shannon/ London, [5] S. Znaty et al., Multimedia Multipoint Teleteaching over the European Pilot, Proc. of the 1996 International Zurich Seminar on Digital Communications: Broadband Communications, Lecture Notes in Computer Science, Vol. 1044, February Vitae Mustafa Soy, born in 1974, studied electrical engineering at the University of Erlangen-Nuremberg from 1993 to 1999 when he received his Master's Degree. Since 2000 he has been a Ph. D. student at the Department of Information Systems at the University of Erlangen-Nuremberg. His main research fields are integrated environments for telecooperation in virtual teams where he focuses on the development of flexible and innovative user interfaces for collaborative work, especially communication management systems for virtual teams.

Video Conferencing. Femi Alabi UNC-CH - Comp 523 November 22, 2010

Video Conferencing. Femi Alabi UNC-CH - Comp 523 November 22, 2010 Video Conferencing Femi Alabi UNC-CH - Comp 523 November 22, 2010 Introduction Videoconferencing What Is It? Videoconferencing is a method of communicating between two or more locations where sound, vision

More information

Table of contents: CMA Desktop video conferencing. Video-conference Equipped Levin Hall Rooms. Portable Video System. Web Streaming Server Options

Table of contents: CMA Desktop video conferencing. Video-conference Equipped Levin Hall Rooms. Portable Video System. Web Streaming Server Options The department of Information Service Video Operations offers the latest technology in multimedia video-conferencing as well as satellite downlink capabilities to UTMB faculty, students, staff and affiliates.

More information

New Tools for Synchronous and Asynchronous Teaching and Learning in the Internet

New Tools for Synchronous and Asynchronous Teaching and Learning in the Internet New Tools for Synchronous and Asynchronous Teaching and Learning in the Internet Volker Hilt Christoph Kuhmünch Lehrstuhl für Praktische Informatik IV University of Mannheim Germany {hilt,cjk}@pi4.informatik.uni-mannheim.de

More information

Vennfer v.1.0. A software based video conferencing system

Vennfer v.1.0. A software based video conferencing system INTELLISYS Vennfer v.1.0 A software based video conferencing system Vennfer is an advanced software based video conferencing solution based on a highly sophisticated software engine developed by a core

More information

AT&T Connect Video Conferencing Functional and Architectural Overview. v9.5 October 2012

AT&T Connect Video Conferencing Functional and Architectural Overview. v9.5 October 2012 AT&T Connect Video Conferencing Functional and Architectural Overview v9.5 October 2012 Video Conferencing Functional and Architectural Overview Published by: AT&T Intellectual Property Product: AT&T Connect

More information

Videoconferencing: An introduction for the guest presenter

Videoconferencing: An introduction for the guest presenter UTAS Teaching and Learning resources : An introduction for the guest presenter is used extensively throughout the University for teaching purposes. There are 11 dedicated videoconference venues spread

More information

TELESKILL VIDEO CONFERENCE LIVE

TELESKILL VIDEO CONFERENCE LIVE TELESKILL VIDEO CONFERENCE LIVE Professional Interactive On-line Video communication pres-tvcol-v3.0 Teleskill Video Conference Live Synchronous interactive audiovisual communication amongst several remote

More information

Quality of Service Management for Teleteaching Applications Using the MPEG-4/DMIF

Quality of Service Management for Teleteaching Applications Using the MPEG-4/DMIF Quality of Service Management for Teleteaching Applications Using the MPEG-4/DMIF Gregor v. Bochmann and Zhen Yang University of Ottawa Presentation at the IDMS conference in Toulouse, October 1999 This

More information

Glossary of Terms and Acronyms for Videoconferencing

Glossary of Terms and Acronyms for Videoconferencing Glossary of Terms and Acronyms for Videoconferencing Compiled by Irene L. Ferro, CSA III Education Technology Services Conferencing Services Algorithm an algorithm is a specified, usually mathematical

More information

White Paper. Interactive Multicast Technology. Changing the Rules of Enterprise Streaming Video

White Paper. Interactive Multicast Technology. Changing the Rules of Enterprise Streaming Video Interactive Multicast Technology Changing the Rules of Enterprise Streaming Video V Table of Contents Introduction IP Multicast Technology in a Nutshell The Missing Interactivity: VCON Interactive Multicast

More information

tele-task Teleteaching Anywhere Solution Kit

tele-task Teleteaching Anywhere Solution Kit Forschungsbericht Nr. 2002-21 tele-task Teleteaching Anywhere Solution Kit Christoph Meinel, Volker Schillings FB IV Informatik, Universität Trier D-54286 Trier, Germany email: {meinel, schillings}@uni-trier.de

More information

Videoconferencing Glossary

Videoconferencing Glossary Videoconferencing Glossary Algorithm A set of specifications that define methods and procedures for transmitting audio, video, and data. Analog Gateway A means of connecting dissimilar codecs. Incoming

More information

Conference interpreting with information and communication technologies experiences from the European Commission DG Interpretation

Conference interpreting with information and communication technologies experiences from the European Commission DG Interpretation Jose Esteban Causo, European Commission Conference interpreting with information and communication technologies experiences from the European Commission DG Interpretation 1 Introduction In the European

More information

An introduction to videoconference teaching

An introduction to videoconference teaching UTas Teaching and Learning resources An introduction to videoconference teaching is used extensively throughout the University for teaching purposes. There are 9 dedicated videoconference venues spread

More information

Video Conferencing Glossary of Terms

Video Conferencing Glossary of Terms Video Conferencing Glossary of Terms A Algorithm A step-by-step problem-solving procedure. Transmission of compressed video over a communications network requires sophisticated compression algorithms.

More information

DISTANCE LEARNING APPLICATIONS ACROSS MULTIPLE PLATFORMS AND NETWORKS

DISTANCE LEARNING APPLICATIONS ACROSS MULTIPLE PLATFORMS AND NETWORKS DISTANCE LEARNING APPLICATIONS ACROSS MULTIPLE PLATFORMS AND NETWORKS Claus J. S. Knudsen Division of Media Technology and Graphic Arts Royal Institute of Technology (KTH) Drottning Kristinas v.47 D, SE-100

More information

White Paper on Video Wall Display Technology in Videoconferencing HUAWEI TECHNOLOGIES CO., LTD. Issue 01. Date 2012-2-23

White Paper on Video Wall Display Technology in Videoconferencing HUAWEI TECHNOLOGIES CO., LTD. Issue 01. Date 2012-2-23 White Paper on Video Wall Display Technology in Videoconferencing Issue 01 Date 2012-2-23 HUAWEI TECHNOLOGIES CO., LTD. 2012. All rights reserved. No part of this document may be reproduced or transmitted

More information

Prof. Dr. Abdulmotaleb El Saddik. elsaddik @ site.uottawa.ca abed @ mcrlab.uottawa.ca

Prof. Dr. Abdulmotaleb El Saddik. elsaddik @ site.uottawa.ca abed @ mcrlab.uottawa.ca Multimedia Communications Multimedia Technologies & Applications Prof. Dr. Abdulmotaleb El Saddik Multimedia Communications Research Laboratory School of Information Technology and Engineering University

More information

Design and Implementation of a Teleteaching Environment

Design and Implementation of a Teleteaching Environment Design and Implementation of a Teleteaching Environment Constantin Arapis and Dimitri Konstantas University of Geneva - CUI 24 rue General Dufour 1211 Geneve 4 SWITZERLAND email: {Constantin.Arapis, Dimitri.Konstantas}@

More information

Native ATM Videoconferencing based on H.323

Native ATM Videoconferencing based on H.323 Native Videoconferencing based on H.323 Rodrigo Rodrigues, António Grilo, Miguel Santos and Mário S. Nunes INESC R. Alves Redol nº 9, 1 Lisboa, Portugal Abstract Due to the potential of videoconference

More information

VIDEOCONFERENCE. 1 Introduction. Service Description Videoconferece

VIDEOCONFERENCE. 1 Introduction. Service Description Videoconferece VIDEOCONFERENCE 1 Introduction Videoconferencing is interactive remote communication between two or more participants, transmitted by voice or image. Participants see and listen to each other and can present

More information

Site Coordinator Training IP-Based Videoconferencing Services. InterTechnologies Group Minnesota Department of Administration

Site Coordinator Training IP-Based Videoconferencing Services. InterTechnologies Group Minnesota Department of Administration Site Coordinator Training IP-Based Videoconferencing Services InterTechnologies Group Minnesota Department of Administration Agenda Introductions H.323 Technical Overview Customer/site responsibilities

More information

Next Generation. Surveillance Solutions. Cware. The Advanced Video Management & NVR Platform

Next Generation. Surveillance Solutions. Cware. The Advanced Video Management & NVR Platform Next Generation Surveillance Solutions Cware The Advanced Video Management & NVR Platform Advanced Open Management Benefit from the most effective CCTV management platform Cware is an advanced video management

More information

GTS VIDEOCONFERENCE. Powered by: Valid from: 1 June 2014

GTS VIDEOCONFERENCE. Powered by: Valid from: 1 June 2014 GTS VIDEOCONFERENCE Valid from: 1 June 2014 Powered by: 1/13 1 Introduction Videoconferencing is interactive remote communication between two or more participants, transmitted by voice or image. Participants

More information

31 Segovia, San Clemente, CA 92672 (949) 369-3867 TECemail@aol.com

31 Segovia, San Clemente, CA 92672 (949) 369-3867 TECemail@aol.com 31 Segovia, San Clemente, CA 92672 (949) 369-3867 TECemail@aol.com This file found on the TEC website at http://www.tecweb.org/eddevel/telecon/telematrix.pdf TEC, 2000 Teleconferencing Technologies Comparison

More information

Virtual PC-Type Thin Client System

Virtual PC-Type Thin Client System Thin Client Virtual PC-Type Thin Client System KAWASHIMA Hiroyuki, KOSHIBA Kunihiro, TUCHIMOCHI Kazuki, FUTAMURA Kazuhiro, ENOMOTO Masahiko, WATANABE Masahiro Abstract NEC has developed VirtualPCCenter,

More information

TCP/IP Network Communication in Physical Access Control

TCP/IP Network Communication in Physical Access Control TCP/IP Network Communication in Physical Access Control The way it's done: The security industry has adopted many standards over time which have gone on to prove as solid foundations for product development

More information

AT&T Connect Video conferencing functional and architectural overview

AT&T Connect Video conferencing functional and architectural overview AT&T Connect Video conferencing functional and architectural overview 2015 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other AT&T marks contained herein are trademarks

More information

Digital Library for Multimedia Content Management

Digital Library for Multimedia Content Management Digital Library for Multimedia Content Management Cezary Mazurek, Maciej Stroinski, Sebastian Szuber Pozna_ Supercomputing and Networking Centre, ul. Noskowskiego 10, 61-704 Pozna_, POLAND tel. +48 61

More information

Ingenieur Büro Unterbusch Tel: +49 (0) 7553 9180 120 Fax: +49 (0) 7553 9180 129 e-mail: KlausUnterbusch@unterbusch.com. TelLink

Ingenieur Büro Unterbusch Tel: +49 (0) 7553 9180 120 Fax: +49 (0) 7553 9180 129 e-mail: KlausUnterbusch@unterbusch.com. TelLink 1 IP based TV Distribution Local Source Streaming Head-end Core network Metro Network Last mile Home h4 main elements to any Broadband system: Streaming head-end Core network Last-mile access network (xdsl

More information

Flexible and Flawless Get a hold of every critical moment instantly without compromise

Flexible and Flawless Get a hold of every critical moment instantly without compromise Flexible and Flawless Get a hold of every critical moment instantly without compromise KE6900T / KE6940T KE6900R / KE6940R Over IP Extend, split and switch keyboard / mouse, high definition video, USB

More information

VIA CONNECT PRO Deployment Guide

VIA CONNECT PRO Deployment Guide VIA CONNECT PRO Deployment Guide www.true-collaboration.com Infinite Ways to Collaborate CONTENTS Introduction... 3 User Experience... 3 Pre-Deployment Planning... 3 Connectivity... 3 Network Addressing...

More information

Internet Desktop Video Conferencing

Internet Desktop Video Conferencing Pekka Isto 13.11.1998 1(8) Internet Desktop Video Conferencing ABSTRACT: This is report outlines possible use of Internet desktop videoconferencing software in a distributed engineering project and presents

More information

VIDEOCONFERENCING AS AN INSTRUCTIONAL MEDIUM: ISSUES AND CHALLENGES

VIDEOCONFERENCING AS AN INSTRUCTIONAL MEDIUM: ISSUES AND CHALLENGES VIDEOCONFERENCING AS AN INSTRUCTIONAL MEDIUM: ISSUES AND CHALLENGES Dr. Linda K. Lau, Longwood University, llau@longwood.edu ABSTRACT This paper commences with a definition of distance learning and videoconferencing.

More information

Videoconferencing System. The Cong Giang EAP IT Manager

Videoconferencing System. The Cong Giang EAP IT Manager Videoconferencing System The Cong Giang EAP IT Manager Participants What do you know about Videoconferencing? What is Videoconferencing? What are basic equipments? Frame rate (VC, TV broadcast and Film)?

More information

Advisor: Christopher Shamburg

Advisor: Christopher Shamburg Advisor: Christopher Shamburg SNAPSHOT OF NJEDGE.NET VIDEO SERVICES AND UTILIZATION Julio A. Velasco Submitted in partial fulfillment of the requirements for the degree of Master of Arts in Educational

More information

_Tailor made solutions Our strength is our commitment.

_Tailor made solutions Our strength is our commitment. _Tailor made solutions Our strength is our commitment. Your project will pass through different stages DESIGN IMPLEMENTATION MAINTENANCE & SUPPORT CONSULTANCY Needs assessment Site study Design proposal

More information

QuickTime Streaming. End-to-end solutions for live broadcasting and on-demand streaming of digital media. Features. Media Streaming at a Glance

QuickTime Streaming. End-to-end solutions for live broadcasting and on-demand streaming of digital media. Features. Media Streaming at a Glance QuickTime Streaming End-to-end solutions for live broadcasting and on-demand streaming of digital media. Features Unlimited cross-platform streaming Streams to standards-based media players on any platform

More information

Video conferencing. Introduction Standards Products Internet telephony Computer Telephony Integration (CTI) Petri Vuorimaa 1

Video conferencing. Introduction Standards Products Internet telephony Computer Telephony Integration (CTI) Petri Vuorimaa 1 Video conferencing Introduction Standards Products Internet telephony Computer Telephony Integration (CTI) Petri Vuorimaa 1 Introduction Video conferencing can be used for + Audio-visual communication

More information

presentation Our customers & Partners AE40 www.ae40.com +972-9-743-8410

presentation Our customers & Partners AE40 www.ae40.com +972-9-743-8410 AE40 presentation AE40 Our customers & Partners AE40 profile AE40 founded at 2002 Privately held company VoIP and Video over IP based communication solutions(radio, intercom, public announcements, telephony,

More information

Fortschritt-Berichte VDI

Fortschritt-Berichte VDI Fortschritt-Berichte VDI Reihe 10 Informatik/ Kommunikation Dipl.-lnform. Helmut Gogl, Munchen Nr. 670 Measurement and Characterization of Traffic Streams in High-Speed Wide Area Networks VDI Verlag V

More information

Introduction. Video conferencing. Equipment. Systems. Multipoint Conferences. Group Meetings

Introduction. Video conferencing. Equipment. Systems. Multipoint Conferences. Group Meetings Video conferencing Introduction Standards Products Internet telephony Computer Telephony Integration (CTI) Introduction Video conferencing can be used for + Audio-visual communication + Sharing of documents,

More information

VIDEO CONFERENCE. Alessandro Benni & VIDEO COMMUNICATIONS. Bologna, 2007. Videorent srl - Video & Multimedia Branch

VIDEO CONFERENCE. Alessandro Benni & VIDEO COMMUNICATIONS. Bologna, 2007. Videorent srl - Video & Multimedia Branch VIDEO CONFERENCE & VIDEO COMMUNICATIONS Alessandro Benni Videorent srl - Video & Multimedia Branch Bologna, 2007 Today s lesson will cover What is Video Conference? Why Video Conference? History of Video

More information

Wireless Video Best Practices Guide

Wireless Video Best Practices Guide Wireless Video Best Practices Guide Using Digital Video Manager (DVM) with the OneWireless Universal Mesh Network Authors: Annemarie Diepenbroek DVM Product Manager Soroush Amidi OneWireless Product Manager

More information

Possible Applications

Possible Applications FRAUNHOFER Institute for integrated circuits iis DECT Wireless Voice and Data Communications DECT stands for Digital Enhanced Cordless Telecommunication and is an accepted standard in more than 100 countries.

More information

D-Link, the D-Link logo, and D-ViewCam are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the United States and

D-Link, the D-Link logo, and D-ViewCam are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the United States and Remotely Managed Internet Cameras Deliver Low-Cost IP Surveillance Monitoring and Automation White Paper Abstract Internet Protocol cameras (IP cameras) enable anyone with access credentials and a standard

More information

A Web Conference System Architecture for the Broadband Era. Yoichi Kato

A Web Conference System Architecture for the Broadband Era. Yoichi Kato International Telecommunication Union International Multimedia Telecommunications Consortium A Web Conference System Architecture for the Broadband Era Yoichi Kato General Manager, Web Conference Systems

More information

Multimedia Data Processing Elements for Digital TV and Multimedia Services in Home Server Platform

Multimedia Data Processing Elements for Digital TV and Multimedia Services in Home Server Platform Multimedia Data Processing Elements for Digital TV and Multimedia Services in Home Server Platform Minte Chen IEEE Transactions on Consumer Electronics, Vol. 49, No.1, FEBRUARY 2003 IEEE Transactions on

More information

HDMI / Video Wall over IP Transmitter with PoE

HDMI / Video Wall over IP Transmitter with PoE / Wall over IP Transmitter with Key Features Network 1080P ultra high quality video transmitter Assigns video sources to any monitor of the video wall Up to 8 x 8 Screen Array supported Extends high definition

More information

IT Services. Multimedia Services. ETH Zurich. Event support services. ITS-Multimedia Services (MMS) www.mms.ethz.ch/index_en

IT Services. Multimedia Services. ETH Zurich. Event support services. ITS-Multimedia Services (MMS) www.mms.ethz.ch/index_en IT Services ETH Zurich Multimedia Services Event support services ITS-Multimedia Services (MMS) www.mms.ethz.ch/index_en Multimedia Services at ETH Most events nowadays, be it conference, workshop or seminar,

More information

CSCW & SOFTWARE ENGINEERING

CSCW & SOFTWARE ENGINEERING University Duisburg-Essen Faculty of Engineering - Computer Engineering - Dr.-Ing. Stefan Werner Pascal A. Klein, M.Sc. 2014 LAB CSCW & SOFTWARE ENGINEERING EXPERIMENT 3 Videoconferencing Studio Name:

More information

Scope of Work and Techical Specifications

Scope of Work and Techical Specifications 1 General Information Scope of Work and Techical Specifications 1.1 Location The video conferencing solution is required to be installed at 11 locations in Ethiopia. The type of video conferencing end

More information

Distributed Application Launching for High Quality Graphics in Synchronous Distance Education. Overview

Distributed Application Launching for High Quality Graphics in Synchronous Distance Education. Overview Distributed Application Launching for High Quality Graphics in Synchronous Distance Education J. Mark Pullen and Jim X. Chen Department of Computer Science and George Mason University Fairfax, VA, 22030,

More information

Milestone Solution Partner IT Infrastructure Components Certification Summary

Milestone Solution Partner IT Infrastructure Components Certification Summary Milestone Solution Partner IT Infrastructure Components Certification Summary Dell FS8600 NAS Storage 12-1-2014 Table of Contents Introduction:... 2 Dell Storage Architecture:... 3 Certified Products:...

More information

ADVANTAGES OF AV OVER IP. EMCORE Corporation

ADVANTAGES OF AV OVER IP. EMCORE Corporation ADVANTAGES OF AV OVER IP More organizations than ever before are looking for cost-effective ways to distribute large digital communications files. One of the best ways to achieve this is with an AV over

More information

Design and implementation of IPv6 multicast based High-quality Videoconference Tool (HVCT) *

Design and implementation of IPv6 multicast based High-quality Videoconference Tool (HVCT) * Design and implementation of IPv6 multicast based High-quality conference Tool (HVCT) * Taewan You, Hosik Cho, Yanghee Choi School of Computer Science & Engineering Seoul National University Seoul, Korea

More information

Cisco Video Collaboration Guide. Select the Right Equipment and Vendor

Cisco Video Collaboration Guide. Select the Right Equipment and Vendor Cisco Video Collaboration Guide Select the Right Equipment and Vendor See How Video Collaboration Fits Your Needs Camera. Microphone. Monitor. Speaker. Codec. These are the five essential components that

More information

Multimedia Services for the Greek Higher Education community

Multimedia Services for the Greek Higher Education community Multimedia Services for the Greek Higher Education community Dr. Pantelis Balaouras University of Athens Greek Academic Network GUnet ΝΑΤΙΟΝAL & KAPODISTRIAN UNIVERSITY OF ATHENS About Greek Academic Network-

More information

ID-No. of presentation: t3a01391. ODL SERVICES AND PTTs: THE GREEK PTT CASE

ID-No. of presentation: t3a01391. ODL SERVICES AND PTTs: THE GREEK PTT CASE ID-No. of presentation: t3a01391 Authors: Christos Bouras, Computer Technology Institute, Patras, Greece Apostolos Gkamas, Computer Technology Institute, Patras, Greece Vaggelis Kapoulas, Computer Technology

More information

Intelligent Content Delivery Network (CDN) The New Generation of High-Quality Network

Intelligent Content Delivery Network (CDN) The New Generation of High-Quality Network White paper Intelligent Content Delivery Network (CDN) The New Generation of High-Quality Network July 2001 Executive Summary Rich media content like audio and video streaming over the Internet is becoming

More information

Video over IP WHITE PAPER. Executive Summary

Video over IP WHITE PAPER. Executive Summary Video over IP Executive Summary Thinking as an executive, there are pressures to keep costs down and help a company survive in this challenging market. Let us assume that company A has 10 locations and

More information

HDMI over IP Broadcasting System ITEM NO.: HE05BT, HE05BER HDMI Matrix over IP Broadcasting

HDMI over IP Broadcasting System ITEM NO.: HE05BT, HE05BER HDMI Matrix over IP Broadcasting HDMI over IP Broadcasting System ITEM NO.: HE05BT, HE05BER HDMI Matrix over IP Broadcasting HE05B is a Multicast HDMI video over an IP network to up to 200 screens for faster, more efficient HD content

More information

Videoconference Videoconference. Videoconference. Videoconference

Videoconference Videoconference. Videoconference. Videoconference Videoconference Videoconference Videoconference Videoconference erik.luyten@avnet.kuleuven.be AVNet K.U.Leuven What is it? Two-way communication Real-time (latency < 1second) 2 Sound: echo-cancelation

More information

VIA COLLAGE Deployment Guide

VIA COLLAGE Deployment Guide VIA COLLAGE Deployment Guide www.true-collaboration.com Infinite Ways to Collaborate CONTENTS Introduction... 3 User Experience... 3 Pre-Deployment Planning... 3 Connectivity... 3 Network Addressing...

More information

A Vaddio Whitepaper. Video In Education Paradigm Shift

A Vaddio Whitepaper. Video In Education Paradigm Shift A Vaddio Whitepaper Video In Education Paradigm Shift Author: S. Ann Earon, Ph.D., President Telemanagement Resources International Inc. Date: June 2011 A Vaddio Whitepaper Video In Education Paradigm

More information

Multimedia Applications. Streaming Stored Multimedia. Classification of Applications

Multimedia Applications. Streaming Stored Multimedia. Classification of Applications Chapter 2: Basics Chapter 3: Multimedia Systems Communication Aspects and Services Multimedia Applications and Communication Multimedia Transfer and Protocols Quality of Service and Resource Management

More information

How to organize and run audio/ videoconference

How to organize and run audio/ videoconference How to organize and run audio/ videoconference Zlatko Jelačić CARNet Room Videoconferencing System Zlatko.Jelacic@CARNet.hr 0 Q&A!Do you really need VC?!What kind of VC do you need?!what kind of TCR do

More information

12 Multimedia Conferencing

12 Multimedia Conferencing 12 Multimedia Conferencing 12.1 Multimedia Conferencing: Service Definition and Equipment 12.2 Application Examples 12.3 Typology of Multi-Point Conferences 12.4 Standards for Multimedia Conferencing Literature:

More information

Cisco TelePresence TX1300 Series

Cisco TelePresence TX1300 Series Data Sheet Cisco TelePresence TX1300 Series Product Overview The Cisco TelePresence TX1300 Series extends the experience pioneered by Cisco s fully immersive threescreen solutions to smaller general purpose

More information

4. H.323 Components. VOIP, Version 1.6e T.O.P. BusinessInteractive GmbH Page 1 of 19

4. H.323 Components. VOIP, Version 1.6e T.O.P. BusinessInteractive GmbH Page 1 of 19 4. H.323 Components VOIP, Version 1.6e T.O.P. BusinessInteractive GmbH Page 1 of 19 4.1 H.323 Terminals (1/2)...3 4.1 H.323 Terminals (2/2)...4 4.1.1 The software IP phone (1/2)...5 4.1.1 The software

More information

PERFORMANCE ANALYSIS OF VIDEO FORMATS ENCODING IN CLOUD ENVIRONMENT

PERFORMANCE ANALYSIS OF VIDEO FORMATS ENCODING IN CLOUD ENVIRONMENT Suresh Gyan Vihar University Journal of Engineering & Technology (An International Bi Annual Journal) Vol. 1, Issue 1, 2015, pp 1 5 ISSN: 2395 0196 PERFORMANCE ANALYSIS OF VIDEO FORMATS ENCODING IN CLOUD

More information

Machine Problem 3 (Option 1): Mobile Video Chat

Machine Problem 3 (Option 1): Mobile Video Chat Machine Problem 3 (Option 1): Mobile Video Chat CS414 Spring 2011: Multimedia Systems Instructor: Klara Nahrstedt Posted: Apr 4, 2011 Due: 11:59pm Apr 29, 2011 Introduction You may have heard that Apple

More information

IP Video Surveillance

IP Video Surveillance IP Video Surveillance Solutions and Services Wireless IP PDA Administration Wireless Access Point Viewer Remote Control IP Video Server IP Network Alarm Management Video Recording Analog Video Server Access

More information

The H.264 Advanced Video Coding (AVC) Standard

The H.264 Advanced Video Coding (AVC) Standard Whitepaper: The H.264 Advanced Video Coding (AVC) Standard What It Means to Web Camera Performance Introduction A new generation of webcams is hitting the market that makes video conferencing a more lifelike

More information

Network support for tele-education

Network support for tele-education Network support for tele-education Aiko Pras Centre for Telematics and Information Technology University of Twente (UT) http://wwwtios.cs.utwente.nl/~pras This paper discusses the state of the art in networking,

More information

A Web Services Framework for Collaboration and Audio/Videoconferencing

A Web Services Framework for Collaboration and Audio/Videoconferencing A Web Services Framework for Collaboration and Audio/Videoconferencing Geoffrey Fox, Wenjun Wu, Ahmet Uyar, Hasan Bulut Community Grid Computing Laboratory, Indiana University gcf@indiana.edu, wewu@indiana.edu,

More information

GR2000: a Gigabit Router for a Guaranteed Network

GR2000: a Gigabit Router for a Guaranteed Network Hitachi Review Vol. 48 (1999), No. 4 203 GR2000: a Gigabit Router for a Guaranteed Network Kazuo Sugai Yoshihito Sako Takeshi Aimoto OVERVIEW: Driven by the progress of the information society, corporate

More information

Outline (Preliminary)

Outline (Preliminary) Outline (Preliminary) 1. Introduction and Motivation 2. Digital Rights Management 3. Cryptographic Techniques 4. Electronic Payment Systems 5. Multimedia Content Description Part I: Content-Oriented Base

More information

Multipoint Desktop Videoconferencing: technology

Multipoint Desktop Videoconferencing: technology Proceedings of the NACCQ 2000 Wellington NZ www.naccq.ac.nz Multipoint Desktop Videoconferencing: technology and implementation for New Zealand business and education Carole L. Teixeira DeViCon New Zealand

More information

Assessing Telehealth Operational and Technology Security Risks to Privacy

Assessing Telehealth Operational and Technology Security Risks to Privacy Assessing Telehealth Operational and Technology Security Risks to Privacy Prepared by the Center for Telehealth University of New Mexico Health Sciences Center July 2003 INTRODUCTION The purpose of this

More information

Multi-Profile CMOS Infrared Network Camera

Multi-Profile CMOS Infrared Network Camera Multi-Profile CMOS Infrared Network Camera Quick Start Guide About multi-profile Multi-profile stands for simultaneously video stream. The Network Camera and Video Server can generate MPEG4 and MJPEG streaming

More information

CCTV & Video Surveillance over 10G ip

CCTV & Video Surveillance over 10G ip CCTV & Video Surveillance over 10G ip Background With the increase in data, research and development and corporate competition, many companies are realizing the need to not only protect their data, but

More information

The Benefits of a Telepresence Platform

The Benefits of a Telepresence Platform The Benefits of a Telepresence Platform Wainhouse Research, LLC 34 Duck Hill Terrace Duxbury, MA 02332 USA +1.781.934.6165 www.wainhouse.com Ira M. Weinstein Wainhouse Research November 2008 Study sponsored

More information

Performance analysis and comparison of virtualization protocols, RDP and PCoIP

Performance analysis and comparison of virtualization protocols, RDP and PCoIP Performance analysis and comparison of virtualization protocols, RDP and PCoIP Jiri Kouril, Petra Lambertova Department of Telecommunications Brno University of Technology Ustav telekomunikaci, Purkynova

More information

Computer Network. Interconnected collection of autonomous computers that are able to exchange information

Computer Network. Interconnected collection of autonomous computers that are able to exchange information Introduction Computer Network. Interconnected collection of autonomous computers that are able to exchange information No master/slave relationship between the computers in the network Data Communications.

More information

Corporate Presentation

Corporate Presentation Corporate Presentation The Company Norwegian Company, founded January 2010 Headquarters in Oslo Local presence across Europe Industry experienced professionals OEM Partnership with and Oslo Headquarters

More information

Christie Brio Frequently Asked Questions

Christie Brio Frequently Asked Questions Christie Brio Frequently Asked Questions What is Christie Brio? Christie Brio is a network-enabled collaboration and presentation solution that allows multiple users to quickly share, edit and annotate

More information

P2P Streaming Linked with Home Networks

P2P Streaming Linked with Home Networks P2P Streaming Linked with Home Networks We implemented a prototype application that allows listening to and viewing multimedia content recorded with a video recorder using a mobile terminal, as part of

More information

Internet Protocols for Synchronous Distance Learning

Internet Protocols for Synchronous Distance Learning Internet Protocols for Synchronous Distance Learning Ch. Bouras Computer Technology Institute, Greece E-mail: bouras@cti.gr A. Gkamas Computer Technology Institute, Greece E-mail: gkamas@cti.gr Th. Tsiatsos

More information

Deploying VSaaS and Hosted Solutions Using CompleteView

Deploying VSaaS and Hosted Solutions Using CompleteView SALIENT SYSTEMS WHITE PAPER Deploying VSaaS and Hosted Solutions Using CompleteView Understanding the benefits of CompleteView for hosted solutions and successful deployment architecture Salient Systems

More information

An Introduction to the Basics of Video Conferencing

An Introduction to the Basics of Video Conferencing WHITE PAPER An Introduction to the Basics of Video Conferencing Introduction In the next few years we shall see explosive growth in the use of video conferencing as a fundamental tool for businesses to

More information

Computer Networks CS321

Computer Networks CS321 Computer Networks CS321 Dr. Ramana I.I.T Jodhpur Dr. Ramana ( I.I.T Jodhpur ) Computer Networks CS321 1 / 22 Outline of the Lectures 1 Introduction OSI Reference Model Internet Protocol Performance Metrics

More information

Video Conferencing Standards

Video Conferencing Standards Video Conferencing Standards TANDBERG Application Notes D10740, Rev 2.3 This document is not to be reproduced in whole or in part without the permission in writing from TANDBERG ITU DEFINED STANDARDS...3

More information

VIDEO CONFERENCING FOR PARTICLE PHYSICS

VIDEO CONFERENCING FOR PARTICLE PHYSICS VIDEO CONFERENCING FOR PARTICLE PHYSICS CODEC vs. PACKET BASED VIDEO CONFERENCING (SUPERJANET VIDEO NETWORK CLOSED IN SEPTEMBER 1997) FURTHER COMMENTS ON CODEC (ISDN) V/C CERN PLANS UKERNA PLANS PPNCG

More information

Megapixel Surveillance

Megapixel Surveillance White Paper The Latest Advances in Megapixel Surveillance Table of Contents Development of IP Surveillance 03 Benefits of IP Surveillance 03 Development of Megapixel Surveillance 04 Benefits of Megapixel

More information

Distributed Network PA System VECTUS. TCP/IP Based Distributed Network PA System. incorporating. VECTUSnet. technology

Distributed Network PA System VECTUS. TCP/IP Based Distributed Network PA System. incorporating. VECTUSnet. technology Distributed PA VECTUS TCP/IP Based Distributed PA incorporating VECTUS PA An Integrated TCP/IP Based Communication Until recently, designing and building audio distribution systems with any degree of flexibility

More information

Region 10 Videoconference Network (R10VN)

Region 10 Videoconference Network (R10VN) Region 10 Videoconference Network (R10VN) Network Considerations & Guidelines 1 What Causes A Poor Video Call? There are several factors that can affect a videoconference call. The two biggest culprits

More information

Part IV. Conversational Multimedia Services

Part IV. Conversational Multimedia Services Multimedia im Netz Wintersemester 2010/2011 Part IV Conversational Multimedia Services 1 12!Multimedia Conferencing 12.1! Multimedia Conferencing:! Service Definition and Equipment 12.2! Application Examples

More information

The IP Divide in AV systems

The IP Divide in AV systems The IP Divide in AV systems Jeffrey Lam Kramer Electronics Asia Pacific Pte Ltd Jeffrey@kramerasia.com AGENDA 1. AV systems & Infrastructure 2. The push for IP 3. IP migration barriers 4. Crossing the

More information

White Paper July 2010 Desktop Video Conferencing

White Paper July 2010 Desktop Video Conferencing White Paper July 2010 Desktop Video Conferencing Industry trends and deployment best practices Abstract Desktop video conferencing can be defined as the use of video conferencing software on a personal

More information